{
  "kind": "fact",
  "studySlug": "model-divergence",
  "slug": "best-of-prompts-carry-a-high-divergence-tail",
  "title": "Best-of prompts carry a high-divergence tail",
  "description": "The study Same Question, Different AI, Different Answers evaluated model consistency and found that best-of prompts frequently split models.",
  "lastUpdated": "2026-03-11",
  "lastTested": "2026-03-11",
  "sourceStudyUrl": "/trakkr-research/model-divergence",
  "sourceStudyTitle": "Same Question, Different AI, Different Answers",
  "claimIds": [
    "model-divergence:bestof-divergence"
  ],
  "relatedSlugs": [
    "answer:should-you-use-one-model-as-a-proxy-for-all-ai-visibility",
    "answer:why-do-models-disagree-so-much-even-on-common-categories",
    "tracker:query-class-agreement-tracker"
  ],
  "methodologySummary": "Built from 797,644 valid comparisons across 44,088 reports and 8 models, covering 6,439,133 model responses in the observed window.",
  "limitations": [
    "Agreement is measured across recommendation outputs, not across hidden reasoning or retrieval context.",
    "Average agreement can hide large differences between query classes and model pairs.",
    "The study measures overlap, not which answer was objectively “right”."
  ],
  "keywords": [
    "model divergence",
    "AI agreement",
    "ChatGPT vs Claude",
    "Gemini vs Perplexity"
  ],
  "schemaHints": {
    "pageType": "Article",
    "includeDataset": true
  },
  "claim": "Best-of prompts show a 14.8 percent high-divergence rate in the model divergence study.",
  "supportingMetrics": [
    {
      "label": "Best-of high divergence",
      "value": "14.8%",
      "detail": "Best-of prompts frequently split models."
    }
  ],
  "whyItMatters": "Strategists should treat best-of content as a high-risk visibility category that requires diversified optimization tactics to account for inconsistent model outputs.",
  "citationBlock": {
    "quote": "Best-of prompts show a 14.8% high-divergence rate in the model divergence study.",
    "attribution": "Same Question, Different AI, Different Answers - Trakkr Research",
    "url": "https://trakkr.ai/trakkr-research/model-divergence/facts/best-of-prompts-carry-a-high-divergence-tail"
  }
}